Switch button



FIG. 1 is a front three-quarters perspective view of a switch button mounted upon a flat slotted surface showing my new design, the flat surface not being a part of the design;

FIG. 2 is a right side elevational view therefor, the left side elevational view being a mirror image thereof;

FIG. 3 is a top plan view therefor, the bottom plan view being a mirror image thereof;

FIG. 4 is a front elevational view thereof; and,

FIG. 5 is a rear elevational view thereof. 

The ornamental design for a switch button, as shown and described. 